Which of the following describes the function of epinephrine?
a. It increases heart rate, cardiac muscle contractions, and blood-glucose levels.
b. It regulates the concentration of ions in urine, sweat, and saliva.
c. It regulates blood-glucose levels.
d. It triggers the formation of red blood cells in the bone marrow.
a. It increases heart rate, cardiac muscle contractions, and blood-glucose levels.
Epinephrine increases heart rate, cardiac muscle contractions, and blood-glucose levels.
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A. X-inactivation B. Genomic imprinting C. Maternal inheritance D. Extranuclear inheritance E. All of the answers are correct
Microspores are indicated by
a. A. b. B. c. C. d. D. e. E.
Ribosomes are organelles that function in ____
A. plasma membrane selectivity B. cellular energy production C. synthesis of gene products D. transport of materials throughout the cytoplasm E. DNA replication
What is the impulse that travels down a neuron's axon?
A) shock signal B) action potential C) currenter D) resistor